// TODO figure out how to validate the ephemeral drive. perhaps with df -k?
Map<String, BlockDevice> devices = instanceClient.getBlockDeviceMappingForInstanceInRegion(node.getLocation()
.getParent().getId(), node.getProviderId());
BlockDevice device = devices.get("/dev/sdn");
// check delete on termination
assertTrue(device.isDeleteOnTermination());
volume = Iterables.getOnlyElement(ebsClient.describeVolumesInRegion(node.getLocation().getParent().getId(),
device.getVolumeId()));
// check volume size
assertEquals(volumeSize, volume.getSize());
device = devices.get("/dev/sdo");
// check delete on termination
assertTrue(device.isDeleteOnTermination());
volume = Iterables.getOnlyElement(ebsClient.describeVolumesInRegion(node.getLocation().getParent().getId(),
device.getVolumeId()));
// check volume size
assertEquals(volumeSize, volume.getSize());
// check volume's snapshot id
assertEquals(snapshot.getId(), volume.getSnapshotId());